A simple trick for investment is understanding 'Asset' and 'Liability'.

The asset is something that brings you money.

Liability gets money out of your pocket.

A car is a liability unless you are a cab driver and making money out of cars. So, cars could be expensive to have...repair fees, insurance, gas. It's getting money out of your pocket.

The same scenario goes for the house but buying a house is a good long-term investment considering real estate prices are bound to go up most of the times. You can rent it, resell it to make more money.

It's being said that an average millionaire has 7 sources of income, and that's can be achieved by assets.

It's all relative, you need to identify your assets and liabilities.

I am a freelancer, for me, my laptop is an asset for other people it might be a liability.